John Gills Exposition of the Bible Commentary - Psalms 18:25
With the merciful thou wilt show thyself merciful ,.... The merciful man is the good, gracious, holy, and godly man, as the word F26 חסיד "benigno", Vatablus, Junius & Tremellius; "bono", Gejerus, some in Vatablus; "qui bonitati studet", Tigurine version; "pio", Munster, Cocceius, Michaelis; "gracious saint", Ainsworth. here used signifies, and is sometimes rendered; one that has received grace and mercy from the Lord, and has principles of grace and goodness wrought in him, and... read more
Matthew Henry's Complete Commentary - Psalms 18:20-28
Here, I. David reflects with comfort upon his own integrity, and rejoices in the testimony of his conscience that he had had his conversation in godly sincerity and not with fleshly wisdom, 2 Cor. 1:12. His deliverances were an evidence of this, and this was the great comfort of his deliverances. His enemies had misrepresented him, and perhaps, when his troubles continued long, he began to suspect himself; but, when God visibly took his part, he had both the credit and the comfort of his... read more